Snowplow



De@ 3o, 1924.

J. R. BUTTWEILER SNOWPLOW Filed Jan. 9, 1923 ngi-- L 'ur De@V J. R. BUTTWEILER SNOWPLOW Filed Jan. s, '1923 5 'sheets-sheet 2 J. R. BUTTWEILER SNOWPLOW Filed Jan. 9, 1923 5 Sheets-Sheet 5 Patented Ecc. 3), 1924.

JOHN BUTTVZLER, UF FRE-EPORT, MNNESOTA.

.SNGWIPLOW.

Application filed January 9, 1923. Serial No. 611,628.

To all whom it may concern:

Be it 'known that I, JOHN lt. BU'r'rw-ninnn, a citizen of 4the `United -States, Aresiding at Freeport, in the county of Stearns andState of Minnesota, have invented a new and useful `Snowplow, of which the Vfollowing is a specification.

'This invention aims to providea simple means, adapted to be attached to a tractor or like motor propelled vehicle, for clearing the snow from a highway.

rllhe invention aims to :provide novel means for operating the movable parts of the structure, to provide novel mean's for breaking up the snow before the snow is engaged by the rotary elements which cast the snow laterally and, generally, to improve and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings z- Figure 1 shows in top plan, a device constructed in accorda-nce with the invention; Figure 2 is a side elevation; Figure 3 is a front elevation.

' In carrying out the invention there is provided a support 1 which may be in the form of a beam, provided with any suitable means, such as vokes and U-bolts 3, 'whereby the support may be connected to the forward axle of a tractor or other motor propelled vehicle. The numeral 4 marks a carrier which may be a beam, located in front of the support 1 and connected thereto by a pivot element 5 for swinging movement about an axis parallel to the line of advance of the device. The numeral G designates a frame, including forwardly diverging sills 7 connected by hinges 8 to the carrier 4 for vertical swinging' movement. A rear cross member 9 and a forward cross member 10 are connected to the sills 7. Uprights 11 are secured to the forward cross member 1 and extend above and below the sills, 7 as shown in Figure 2. lnclined braces 12 connect the uprights 11 with the rear cross member 9. The frame G embodies a vertical wall 1.4 carried by the uprights 11. A hood 15 extends forwardly from the upper edge of the wall 14. Reinforcing strips 16 are secured to the lower surface of the hood 15. .The upper ends of brackets 17 are vconnected with the strips 16, the brackets being disposed parallel to the wall 14. The brackets 1'? have rearwardly extended ends 18 provided with inwardly prolonged foot plates 19 attached to the wall 14. A V-shaped plow 2O is mounted at its rear end on the wall 14. Knives 21 `are provided, the knives beingl vertically spaced. The apices ofthe knives are secured to forward end of the plow 20, the rear ends of the arms of the knives 21 being carried by the brackets 1T.

Tubular bearings 22 vextend parallel to the line of advance of the machine andare secured at 23 to the members 9 and 10 of the frame 6. At their rear ends, the bearings 22 carry casings 24. Driven shafts 25 are journaled in the bearings 22. Rotary deiectors 26 are mounted on the forward ends of the shafts 25 and are located in advance of the wall 14, beneath the hood 15. The detlectors 2G comprise blades 27 of any desired construction. A transverse drive shaft 28 is journaled in the casings 24. Beveled pinions 29, located in the casings 24, form an operative connection between the driven shafts 25 and the drive shaft 28. Rotation may be imparted in any desired way to the drive shaft 28. lf desired, the drive shaft may be provided with a sprocket wheel 2%() cooperatingwith a sprocket chain 31. The sprocket chain 31 or its equivalent, constitutes means whereby rotation may be imparted to the deliectors 26 from the engine ou the vehicle whcreunto the device forming the subject matter of this application is counected and upon which it is carried.

The knives 21 sever the snow into horizontal slices, an operation which is peculiarly desirable, if the drifts are high and if the snow is packed hard. The plow 20 divides the snow and carries the snow into the field of operation of the detlectors 26. The deflectors 26 cast the snow laterally off the highway. Rotation is imparted to the detiectors 26 by the shafts 25, the intermcshing beveled pinions 29, the drive shaft 28, and the sprocket wheel 30 together with the chain 31, or through the instrumentz'ility of any mechanism which is substituted for the sprocket wheel and the chain.

The frame G can swing about an axis parsills 7 are hinged at 8 to the carrier 4.

The general constructionof the device, is such4 that it will accommodate itself readily to irregularities in the surface of the high- Y I' way which is being cleared of snow.

' -IoY It is to be observed that the rearfends of the knives 2l are connected to the brackets l?, and that the brackets 17 are located in advance of the rotary deflectors 2G, shown clearly in Figure 2. Consequently, when the snow is cast laterally by the deflectors 2G, the knives 2l in no wise interfere with the lateral movement of the snow. i

What is clamedml. A device ofthe class described,co1n `prisng a support; a carrier mounted on the support for tilting movement on an axis pard allel to the line of advance; a frame hinged to the carrier forvertical swinging movement; rotary deflectors Journaled on the frame; and a plow carried by the frame and located between the deflectors.

v2. In a device of th'e class described, a frame, a substantially vertical wall carried by the frame, a hood extended forwardly from the upper edge of the wall,.a Yplow mounted at its rear end on the wall,rotary of the plow, the-rear ends of the knives, being connected to the brackets, and the side portions of the-'knives being spaced Vfrom the side portions of the plow.`

In testimony that I claim the foregoing as my own,`I have hereto affixed my signature in the presence of two witnesses.

. JOHN RBUTTWEILER. l/Vitnesses: j p

HENRY' WOEBKENBERG, i JOSEPH FORREN. 

